Coloring-matter for producing silk-like or pearl-luster effects.



UNITED sTA i s rirENT FICE 'LE' N L'ILIENFELD; oF' VIENNA; AUSTRIA-HUNGARY;

COLORING-MATTER roR PRODUCINGSILK-LIKE on 'PEARL-LUSTER srrEcTs.

To all iuhom it may cancerm' -Be itknown that I, LEON LILIENFELD, a subject of the Em eror of Austria-Hungary,

' and a resident of ienna, Austria-Hungary,

have invented a new and Improved Coloringv a mixture of finely-pulverized mica with viscose. The coloring-matter heretofore used for producing silk-like effects consisted, mainly, 1n a finely divided or pulverized metal suspended in a suitable binding substance; but this coloring-matter is faulty in two pointsnamely, it does not permit the production of a real white color,-as,the powdered aluminium usually employed as the metal part is grayish-blue, and consequently a white effect cannot be produced on a light fabric, on paper, white wood, or the like. The other fault is that it is almost impossible to produce any desired shade by the use of a metal powder, and consequently the user of a coloring substance is confined to the shades ofthe metal powders found in the market and colored by analine dyes or the like.

Coloring of the binding substance for such metal powders is not permissible, as the binding substances cannot very well be col-' ored; but if they are colored the metal pow-.

der in suspension therein changes its color, andhence such coloring substance is very often rendered entirely useless for the desired pu ose.

By uslng the improved coloring-matter above referred to it is possible to produce real whitesilk-like pear-luster 'eflects on lightv materials, and in addition any desired hue or shade can be produced. It is understood that if a solut on of viscose -(cellulose impossible to produce a silk-like. effect, for the reason that the background ap ears through'the transparent coating, and t ereby prevents the desired effect, and by'adding an opaque substance-for instance, a white pigmentthis defect is not overcome, as the Specification of Letters Patent.

Application naam 20.1904. sum No. 209,930.

dissolved viscose it is of the substances. xanthogenate) 1s used as a color then it'is Patented Qct'. 30, 1906.

white pi ment does not reflect ra s of li ht, is luster ess, and consa uently du ls the uster'of the viscose, and tilipmoatin s roduced are not different. from thosedn w ic a white coloring-body is combined witlkanother binding substanc v l f In using finely divided or ulverized mica with gelatin, albumen, or car on hydrates or resinous'solutions and the like the desired silk-like effect is not forthcoming, as these binding substances eliminate the mica luster to a more or less extent.

By the use of mica in combination with possible to produce a coloring-matter which has a silk-like pearlluster brillianc It is expressl understood that the viscose I is not exclusive used as abinding substance or fixing agent fdr the finely-powdered mica, as it is possible to bind the mica perhaps far better with other fixing agents'such as glue,

albumen, resinous solutions, and the like-.-it'

being expressly understood that the maln feature of the invention is to combine mica with viscose to cause the two substances to act collectively, each contributing its share to produce a coloring-matter of silk-like or pearl-luster brilliance, especially as both the mica and the viscose have a silk-like or'pear l luster brilliancy.

The binding substance (dissolvedvrscose) can be readily colored with a suitable plgment without influencing its own brilliance or that of the mica and without the mica affecting thehue or shade desired, so that it is possible by the selection of the proper 1gment for the binding substance to pro uce an desired hue .or shade without loss of the sil y or earl-luster brilliancy.

In or er to produce the co or1ng-matter, 1t is necessary to dissolve the viscose 1n a suitable dissolving medium, the resultant solution (in a colored or uncolored state) bein then thoroughly mixed with finely-powdere (colored or non-colored) mica. If necessary, the coloring-matter produced can be run through sieves to insure an intimate mlxlng Viscose is used onl dissolved in water. In

case it is not desire (to produce white, but

other colors, then it is necessary to use a pig-- ment ca able of dissolving in water or preferably alkali-proof pigments.

The coloring-matter produced with the aid of viscose and mica, as above described,

. the articles as described is characterized by .a high silk-like luster, and this luster or brilliancy can be heightened by calendering or smoothing, &cthat is, by passing the article through ordinary or friction calenders, presses, and the like or by embossing.

Having thus described my invention, I claim asnew-and desire to secure by Letters Patent- 12 Coloring-matter for producing silkslike effects consisting of a mixture of finely-pulverized mica and viscose.

2. Coloring-matter for producing silk-like effects consisting of a mixture of effects consisting of a mixture of finely-pulverized colored mica, and viscose.

2o 3-,, Coloring-matter for produc' silk-like effect consisting of a mixture of ely-pulverizedmica, viscose and alkali-proof pigments.

4. Coloring-matter for produc' silk-like 25 elyulverized mica, viscose and pigments solub e in water.

In testimony whereofI have signed my name to this specification in the presence of 0 two subscribing witnesses.

' L'EON LILIENFELD.

Witnesses:

WENZEL Lmrmrom), ALVESTO S; HOGUE. 

